rotary vane air compressor

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A rotary vane air compressor is a type of positive displacement compressor used to generate compressed air. It consists of a cylindrical casing or housing with an eccentrically mounted rotor inside. The rotor has several vanes that slide in and out of radial slots as it rotates.

When the rotor spins, the centrifugal force pushes the vanes against the inner surface of the housing, creating compression chambers. As the vanes move outward, the chamber volume increases, drawing in air from the intake port. As the vanes move inward, the chamber volume decreases, compressing the air and forcing it out through the outlet port.

The design of rotary vane compressors allows for continuous compression, providing a steady supply of compressed air. They are known for their high efficiency, compact size, and relatively low noise levels compared to other types of compressors.

The Rotary Vane Principle

The rotor, has a number of slots machined along its length into which fit sliding vanes that ride on a film of oil. The rotor rotates within a cylindrical stator. During rotation, centrifugal force extends the vanes from their slots, forming individual compression cells. Rotation decreases the cell volume, increasing the air pressure.

The heat generated by compression is controlled by pressurised oil injection. The only continually moving part is the rotor, which is directly driven at very low speed (1450rpm), offering unrivalled reliability. The main benefit of this technology means that vane compressors last for a very long time and are an extremely reliable & proven technology.